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What causes anosmia?

Many factors can cause anosmia. Some common causes include smoking, allergies, or a blockage in the nose. Trauma from a head injury, brain tumor, or aging can also cause the condition. Anosmia can be temporary or chronic, depending on the cause. It is very rare for a person to be born with anosmia.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.